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Eight green 288-pin DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 256GB (8x32GB) DDR5 4800 ECC Registered RDIMM CL40 1.1V 2Rx8 288-Pin Kit for GIGABYTE MZ33-AR1

SKU CH-K7A9-0B3WA

A 256 GB DDR5-4800 ECC registered RDIMM kit with eight 32 GB modules, CL40 timing and 1.1 V operation validated for the GIGABYTE MZ33-AR1 motherboard

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 8X32GB

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  • Full 256 GB capacity from eight 32 GB modules for maximum server density
  • DDR5 4800 speed with CL40 latency delivers rated throughput on every slot
  • Registered ECC design corrects single-bit errors and offloads the memory controller
  • 1 V operation keeps power draw low across the full kit
  • 288-pin RDIMM form factor matches the GIGABYTE MZ33-AR1 motherboard exactly

Exact-Match Kit for GIGABYTE MZ33-AR1

This 256GB kit contains eight 32GB DDR5 4800 RDIMM modules built to the exact rank, voltage and timing the GIGABYTE MZ33-AR1 memory controller expects. Registered ECC architecture with CL40 latency and 1.1V operation ensures the board recognises full capacity at rated speed. It is designed for administrators who need guaranteed compatibility without manual tuning.

Registered ECC Architecture for Full Population

The registered buffer offloads the memory controller so all eight 288-pin slots can run fully populated at 4800 MT/s while ECC corrects single-bit errors on the fly. This prevents silent data corruption and unplanned reboots in production workloads. Builders using unbuffered UDIMMs or SODIMMs cannot use this kit; the motherboard requires the registered RDIMM form factor.

Lifetime Support and Verified Fitment

The kit ships as a matched 8x32GB set with a lifetime replacement warranty and free US-based technical support. Manufacturer highlights stress consulting the system manual for approved DIMM population order and maximum supported capacity before installation. No heat spreaders are included, so airflow planning remains the builder's responsibility.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $7,726.99
Pricier than about 84% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $30.18 per GB
Pricier than about 86% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-328K8
Total capacity256 GB (8 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsGIGABYTE
In the box
Included items256 GB 8 × 32 GB DDR5 4800 MHz PC5-38400 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

Does the 256GB kit reach its rated 4800 speed when all eight slots of the GIGABYTE MZ33-AR1 are populated?

Yes, the registered architecture offloads the memory controller so every slot runs fully populated at the rated DDR5 4800 speed and CL40 timing.

How much heat and power does the 1.1V 2Rx8 RDIMM produce when the server runs all day without a heat spreader?

Each module operates at 1.1 volts with no heat spreader; registered buffering reduces electrical load on the controller, keeping thermals and power draw within standard DDR5 RDIMM limits for continuous operation.

Must the GIGABYTE MZ33-AR1 motherboard already be installed and running a compatible BIOS for this kit to work?

The kit is spec-matched to the MZ33-AR1's 288-pin RDIMM slots and population rules; the board must be present and configured per its manual for the memory to be recognised at full 256GB capacity.

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